The migratory periods of this bird are not well ascertained; but I have known one shot Nov. 27th, 1821, and they had arrived April 28th, 1830. As there is scarcely a British bird of which so little is known, the following notes may be interesting:--It has been seen perched on the bar of a gate, not across, but according to its length, with the tail elevated; uttering its peculiar sounds; but when perching, as it often does, on the summit of a twig of oaken copse, it fixes upright, with the feet grasping the twig, and not sitting; just as the swift perches against a wall. One was killed in broad daylight, perched on the upper side of a sloping branch of considerable size; the head was uppermost, and it rested on the feet and tarsi, the latter being bare on the under surface for that purpose. Its attitude in this situation much resembled that of a woodpecker. One that was kept alive with its wing broken sat across the finger, like another bird. When about to take flight it makes a cracking noise, as if the wings smote together, after the manner of a pigeon. _Harbingers of Spring._--One of the earliest intimations of approaching spring is the appearance of the _Phalaena primaria_, and of one or two other moths, floating with expanded wings on the surface of ponds and still water. A butterfly, _Caltha palustris_, is commonly drawn forth from its winter quarters by one of the first warm and sunny days that happen to occur in the month of March: hence it has been termed _fallax veris indicium_, (the deceitful token of spring.) In the Isle of Wight it has been seen on the wing the 8th of January, 1805.--_Rev. W.T. Bree._